<template>
  <transition name="move">
    <div v-show="showFlag" class="food" ref="food">
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image">

          <div class="back" @click="hide">
            <i class="icon-arrow_lift"></i>
          </div>
        </div>

        <div class="content">
          <h1 class="title">{{ food.name }}</h1>
          <div class="detail">
            <span class="sell-count">月售{{ food.sellCount }}份</span>
            <span class="rating">好评率{{ food.rating }}</span>
          </div>
          <div class="price">
            <span class="now">￥{{ food.price }}</span><span class="old"
                                                            v-show="food.oldPrice">￥{{ food.oldPrice }}</span>
          </div>

          <div class="cartcontrol-wrapper">
            <m-cartcontrol @add="addOther" :food="food"></m-cartcontrol>
          </div>
          <transition name="fade">
            <div class="buy" @click.stop.prevent="addFirst" v-show="!food.count || food.count === 0">加入购物车</div>
          </transition>
        </div>

        <m-split></m-split>

        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{ food.info }}</p>
        </div>
        <m-split></m-split>

        <div class="rating">
          <h1 class="title">商品评价</h1>
          <m-ratingselect
            @select="ratingTypeSelect"
            @toggle="toggleContent"
            :select-type="selectType" :only-content="onlyContent"
            :desc="desc" :ratings="food.ratings"></m-ratingselect>

          <div class="rating-wrapper">
            <ul v-show="food.ratings && food.ratings.length">
              <li v-show="needShow(rating.rateType, rating.text)" v-for="(rating, index) in food.ratings" :key="index" class="rating-item border-1px">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img :src="rating.avatar" class="avatar" width="12" height="12">
                </div>
                <div class="time">{{rating.rateTime | formatDate}}</div>
                <p class="text">
                  <span :class="{'icon-thumb_up': rating.rateType === 0, 'icon-thumb_down': rating.rateType === 1}"></span>{{rating.text}}
                </p>
              </li>
            </ul>
            <div v-show="!(food.ratings && food.ratings.length)" class="no-rating">暂无评价</div>
          </div>
        </div>
      </div>
    </div>
  </transition>
</template>

<script type="text/ecmascript-6">
import Vue from 'vue';
import {formatDate} from 'common/js/date';
import BScroll from 'better-scroll';
import mCartcontrol from 'components/m-cartcontrol/m-cartcontrol';
import mSplit from 'components/m-split/m-split';
import mRatingselect from 'components/m-ratingselect/m-ratingselect';

const ALL = 2;
export default {
  props: {
    food: {
      type: Object
    }
  },
  data () {
    return {
      showFlag: false,
      selectType: ALL,
      onlyContent: true,
      desc: {
        all: '全部',
        positive: '推荐',
        negative: '吐槽'
      }
    };
  },
  methods: {
    needShow (type, text) {
      if (this.onlyContent && !text) {
        return false;
      }
      if (this.selectType === ALL) {
        return true;
      } else {
        return type === this.selectType;
      }
    },

    ratingTypeSelect (type) {
      this.selectType = type;
    },
    toggleContent (onlyContent) {
      this.onlyContent = !onlyContent;
    },

    addOther (target) {
      this.$emit('add', target);
    },
    addFirst (event) {
      if (!event._constructed) {
        return;
      }
      this.$emit('add', event.target);
      Vue.set(this.food, 'count', 1);
    },

    show () {
      this.showFlag = true;

      this.selectType = ALL;
      this.onlyContent = false;

      this.$nextTick(() => {
        if (!this.scroll) {
          this.scroll = new BScroll(this.$refs.food, {
            click: true
          });
        } else {
          this.scroll.refresh();
        }
      });
    },

    hide () {
      this.showFlag = false;
    }
  },

  filters: {
    formatDate (time) {
      let date = new Date(time);
      return formatDate(date, 'yyyy-MM-dd hh:mm');
    }
  },

  components: {
    mCartcontrol,
    mRatingselect,
    mSplit
  }
};
</script>

<style scoped lang="stylus" rel="stylesheet/stylus">
  @import "../../common/stylus/mixin.styl";
  .food {
    position fixed
    left 0
    top 0
    bottom 48px
    z-index 30
    width 100%
    background #fff

    transform translate3d(0, 0, 0)
    transition all .2s linear
    &.move-enter, &.move-leave-active {
      transform translate3d(100%, 0, 0)
    }

    .image-header {
      position relative
      width 100%
      height 0
      /* padding 是根据宽度计算的 */
      padding-top 100%

      img {
        position absolute
        top 0
        left 0
        width 100%
        height 100%
      }

      .back {
        position absolute
        top 10px
        left 0

        .icon-arrow_lift {
          display block
          padding 10px
          font-size 20px
          color #fff
        }
      }
    }

    .content {
      padding 18px
      .title {
        line-height 14px
        margin-bottom 8px
        font-size 14px
        font-weight 700
        color rgb(7, 17, 27)
      }
      .detail {
        margin-bottom 18px
        line-height 10px
        height: 10px
        font-size 0

        .sell-count, .rating {
          font-size 10px
          color rgb(147, 158, 159)
        }
        .sell-count {
          margin-right 12px
        }
      }

      .price {
        font-weight 700
        line-height 24px
        .now {
          margin-right 8px
          font-size 14px
          color rgb(240, 20, 20)
        }
        .old {
          text-decoration line-through
          font-size 10px
          color rgb(147, 153, 159)
        }
      }
      .cartcontrol-wrapper {
        position absolute
        right 12px
        bottom 12px
        /*height 48px*/
      }
      .buy {
        position absolute
        right 18px
        bottom 18px
        z-index 10
        line-height 24px
        padding 0 12px
        box-sizing border-box
        border-radius 12px
        color #fff
        background rgb(0, 16, 220)
        font-size 10px

        opacity 1
        transition all .2s
        &.fade-enter, &.fade-leave-active {
          opacity 0
        }
      }
    }

    .info {
      padding 18px
      .title {
        line-height 14px
        margin-bottom 6px
        font-size 14px
        color rgb(7, 17, 27)
      }
      .text {
        line-height 24px
        padding 0 8px
        font-size 12px
        color rgb(77, 85, 93)
      }

    }
    .rating {
      padding-top 18px
      .title {
        line-height 14px
        margin-left 18px
        font-size 14px
        color rgb(7, 17, 27)
      }

      .rating-wrapper {
        padding 0 18px
        .rating-item {
          position relative
          padding 16px 0
          border-1px(rgba(7,17,27,.1))
          .user {
            position absolute
            right 0
            top 16px
            line-height 12px
            font-size 0
            .name {
              display inline-block
              margin-right 6px
              vertical-align top
              font-size 10px
              color rgb(147, 153, 159)
            }
            .avatar {
              border-radius 50%
            }
          }
          .time {
            margin-bottom 6px
            line-height 12px
            font-size 10px
            color rgb(147, 153, 159)
          }
          .text {
            line-height 16px
            font-size 12px
            color rgb(7,17,27)
            .icon-thumb_up, .icon-thumb-down {
              margin-right 4px
              line-height 16px
              font-size 12px
            }
            .icon-thumb_up {
              color rgb(0,160, 220)
            }
            .icon-thumb_down {
              color rgb(147, 153, 159)
            }
          }
        }

        .no-rating {
          padding 16px 0
          font-size 12px
          color rgb(147, 153, 159)
        }
      }
    }
  }
</style>
